Ed

Ed Leighton-Dick is a SQL Server performance and architecture expert and Founder/Principal Consultant of Kingfisher Technologies, a consultancy focused on SQL Server performance, architecture, and security. He is a frequent volunteer with PASS, including roles as regional mentor, chapter leader of I-380 PASS SQL Server User Group, and organizer of SQL Saturday Iowa City. He can often be found teaching sessions at local, regional, and national events, including user groups, SQL Saturday events, and Iowa Code Camp. Ed can be reached through his blog, edleightondick.com, and on Twitter at @eleightondick.

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Blog Post

Giving back [T-SQL Tuesday #102]

This post is part of the May 2018 T-SQL Tuesday blog challenge, “Giving Back“, from Riley Major. It’s been quite a while since I’ve participated in a T-SQL Tuesday....

2018-05-08

9 reads

Blog Post

Giving back [T-SQL Tuesday #102]

This post is part of the May 2018 T-SQL Tuesday blog challenge, “Giving Back“, from Riley Major. It’s been quite a while since I’ve participated in a T-SQL Tuesday....

2018-05-08

7 reads

Blog Post

Giving back [T-SQL Tuesday #102]

This post is part of the May 2018 T-SQL Tuesday blog challenge, “Giving Back“, from Riley Major. It’s been quite a while since I’ve participated in a T-SQL Tuesday....

2018-05-08

5 reads

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Question of the Day

BIT_COUNT II

In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data: 

UserID  UserPermissions
15
23
37
4       NULL
What is returned when I run this code: 
select bit_count(UserPermissions) as PermissionCount
from dbo.UserPermission
where UserID = 4;

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